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单词 pentadactyly
释义

pentadactylyn.

Brit. /ˌpɛntəˈdaktᵻli/, /ˌpɛntəˈdaktl̩i/, U.S. /ˌpɛn(t)əˈdæktəli/
Origin: Formed within English, by compounding; modelled on a German lexical item. Etymons: penta- comb. form, -dactyly comb. form.
Etymology: < penta- comb. form + -dactyly comb. form, after German Pentadactylie (1870 in the passage translated in quot. 1892). Compare French pentadactylie (1852 or earlier). Compare earlier pentadactylism n. at pentadactyl adj. and n.2 Derivatives.
Zoology.
The state or condition of being pentadactyl; = pentadactylism n. at pentadactyl adj. and n.2 Derivatives.
ΘΚΠ
the world > life > the body > external parts of body > limb > digit > [noun] > having specific number of
sexdigitism1775
polydactylism1865
pentadactylism1879
polydactyly1886
tetradactylity1891
pentadactyly1892
1892 E. R. Lankester tr. E. Haeckel Hist. Creation (new ed.) II. xxv. 293 (heading) The five fingers (pentadactyly) of the..Amphibia and Amniota... Their origin from the Polydactyl Fish-fins.
1989 Nature 14 Dec. 738/1 Pentadactyly is not a primitive feature of tetrapods, but a derived character that became established later on, after a period of evolutionary experimentation.
2001 Jrnl. Theoret. Biol. 209 493/1 Palentological [sic] evidence has suggested that pentadactyly has occurred twice during tetrapod evolution.
This is a new entry (OED Third Edition, September 2005; most recently modified version published online March 2022).
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n.1892
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